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Water grams to cups
One US cup of water weighs 237 g, a tablespoon 14.8 g and a teaspoon 4.94 g. So 100 g of water is ¼ cup + 2 tbsp + 2 ¼ tsp (0.422 cups).
100 grams of water = 0.422 cups
Measure it: ¼ cup + 2 tbsp + 2 ¼ tsp
Water grams to cups chart
| Grams | US cups | How to measure | Tablespoons |
|---|---|---|---|
| 25 g | 0.105 | 1 tbsp + 2 tsp | 1.69 |
| 50 g | 0.211 | 3 tbsp + 1 tsp | 3.38 |
| 75 g | 0.316 | ⅛ cup + 3 tbsp | 5.06 |
| 100 g | 0.422 | ¼ cup + 2 tbsp + 2 ¼ tsp | 6.75 |
| 125 g | 0.527 | ⅓ cup + 3 tbsp | 8.44 |
| 150 g | 0.633 | ½ cup + 2 tbsp | 10.1 |
| 200 g | 0.844 | ⅔ cup + 3 tbsp | 13.5 |
| 250 g | 1.05 | 1 cup + 1 tbsp | 16.9 |
| 300 g | 1.27 | 1 ¼ cups | 20.3 |
| 400 g | 1.69 | 1 ⅔ cups | 27 |
| 500 g | 2.11 | 2 ⅛ cups | 33.8 |
| 1000 g | 4.22 | 4 ¼ cups | 67.5 |
Cups of water to grams
| Cups | Grams | Ounces |
|---|---|---|
| ⅛ cup | 29.6 g | 1.04 oz |
| ¼ cup | 59.2 g | 2.09 oz |
| ⅓ cup | 79 g | 2.79 oz |
| ½ cup | 118 g | 4.18 oz |
| ⅔ cup | 158 g | 5.57 oz |
| ¾ cup | 178 g | 6.27 oz |
| 1 cup | 237 g | 8.36 oz |
| 1½ cups | 355 g | 12.5 oz |
| 2 cups | 474 g | 16.7 oz |
| 3 cups | 711 g | 25.1 oz |
| 4 cups | 948 g | 33.4 oz |
Where 237 g comes from
USDA FoodData Central: 1 cup of “Water, bottled, generic” = 237 g. FDC 174158
King Arthur Baking ingredient weight chart (“Water”): 227 g per cup. Chart
This page uses 237 g (USDA). The two sources differ by 10 g (4.22%): that gap is about how firmly the cup is filled, not an error in either.
Water is the reference point: one US cup holds 236.6 ml, which weighs 236.6 g, so USDA's 237 g is exact. King Arthur rounds liquids to 8 oz (227 g). In metric countries a cup is 250 ml, so 250 g of water.
How to measure water by the cup
Use a liquid measuring jug on a flat surface and read the line at eye level, or weigh it: for liquids a scale is just as quick.
Questions
How many cups is 100 g of water?
¼ cup + 2 tbsp + 2 ¼ tsp (0.422 cups), measured the liquid way.
How many grams is 1 cup of water?
237 g according to USDA FoodData Central; King Arthur's chart says 227 g.
How many grams in a tablespoon of water?
About 14.8 g; a teaspoon is 4.94 g.
How many cups is 500 g of water?
2 ⅛ cups (2.11 cups).